asn.dev

Observed topology

AS20912 ASN-PANSERVICE

Upstreams 11 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 24
Adjacent (IPv6) 15

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS20912: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv6373
AS3257GTT Communications Inc.TransitIPv4200
AS6939Hurricane Electric LLCTransitIPv4 IPv6165
AS9002RETN LimitedUnclassifiedIPv4 IPv655
AS3303Swisscom (Schweiz) AGResidentialIPv428
AS24482SG.GSHostingIPv4 IPv615
AS59919Brainbox S.r.l.ResidentialIPv414
AS57463NetIX Communications JSCUnclassifiedIPv414
AS31543myNet GmbHResidentialIPv411
AS12637SEEWEB s.r.l.HostingIPv62
AS13030Init7 (Switzerland) Ltd.HostingIPv61

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS20912 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS201127Fastfone s.r.l.UnclassifiedIPv4 IPv6217
AS212590Fivelink SrlUnclassifiedIPv4 IPv6158
AS15663Umbrianet S.R.L.UnclassifiedIPv4129
AS199181Orakom S.r.l.ResidentialIPv4 IPv698
AS60803Clio S.R.LUnclassifiedIPv4 IPv698
AS202339SINET SRLUnclassifiedIPv4 IPv688
AS56472Ampersand SrlResidentialIPv4 IPv666
AS35131Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C."ResidentialIPv459
AS206207Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C."UnclassifiedIPv449
AS208920Rocket Way S.R.L.ResidentialIPv4 IPv635
AS209418Intellitronika srlUnclassifiedIPv427
AS45015Geny Communications SRLUnclassifiedIPv411
AS197506Level7 s.r.l.UnclassifiedIPv46
AS197000Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv42
AS20144ICANNUnclassifiedIPv42

Adjacency

Adjacent networks

39 shown

Every AS seen directly next to AS20912 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv6671
AS6939Hurricane Electric LLCTransitIPv4 IPv6480
AS9002RETN LimitedUnclassifiedIPv4 IPv6382
AS3257GTT Communications Inc.TransitIPv4 IPv6358
AS201127Fastfone s.r.l.UnclassifiedIPv4 IPv6217
AS56472Ampersand SrlResidentialIPv4 IPv6212
AS212590Fivelink SrlUnclassifiedIPv4 IPv6158
AS15663Umbrianet S.R.L.UnclassifiedIPv4129
AS199181Orakom S.r.l.ResidentialIPv4 IPv698
AS60803Clio S.R.LUnclassifiedIPv4 IPv698
AS202339SINET SRLUnclassifiedIPv4 IPv688
AS35131Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C."ResidentialIPv459
AS3303Swisscom (Schweiz) AGResidentialIPv454
AS206207Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C."UnclassifiedIPv449
AS24482SG.GSHostingIPv4 IPv644
AS208920Rocket Way S.R.L.ResidentialIPv4 IPv635
AS59919Brainbox S.r.l.ResidentialIPv434
AS57463NetIX Communications JSCUnclassifiedIPv427
AS209418Intellitronika srlUnclassifiedIPv427
AS45015Geny Communications SRLUnclassifiedIPv415
AS31543myNet GmbHResidentialIPv414
AS197506Level7 s.r.l.UnclassifiedIPv46
AS13030Init7 (Switzerland) Ltd.HostingIPv65
AS29632Netassist International EOODUnclassifiedIPv62
AS197000Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv42
AS20144ICANNUnclassifiedIPv42
AS12637SEEWEB s.r.l.HostingIPv62

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS20912, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 3 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
Milan Internet ExchangeMilan, Italy217.29.67.54416
Roma Internet Exchange PointRome, Italy193.201.28.31225
Milan Neutral Access PointMilan, Italy185.1.114.43115

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.